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Permalink CVE-2026-55424
7.4 HIGH
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Attack Requirement (AT): Present (P)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): Passive (P)
  • Vulnerable System Impact Confidentiality (VC): High (H)
  • Vulnerable System Impact Integrity (VI): High (H)
  • Vulnerable System Impact Availability (VA): None (N)
  • Subsequent System Impact Confidentiality (SC): None (N)
  • Subsequent System Impact Integrity (SI): None (N)
  • Subsequent System Impact Availability (SA): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Attack Requirement (MAT): Present (P)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): Passive (P)
  • Modified Vulnerable System Impact Confidentiality (MVC): High (H)
  • Modified Vulnerable System Impact Integrity (MVI): High (H)
  • Modified Vulnerable System Impact Availability (MVA): None (N)
  • Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
  • Modified Subsequent System Impact Integrity (MSI): Negligible (N)
  • Modified Subsequent System Impact Availability (MSA): Negligible (N)
  • Safety (S): Not Defined (X)
  • Automatable (AU): Not Defined (X)
  • Recovery (R): Not Defined (X)
  • Value Density (V): Not Defined (X)
  • Vulnerability Response Effort (RE): Not Defined (X)
  • Provider Urgency (U): Not Defined (X)
  • Confidentiality Req. (CR): Not Defined (X)
  • Integrity Req. (IR): Not Defined (X)
  • Availability Req. (AR): Not Defined (X)
  • Exploit Maturity (E): Not Defined (X)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Topic featured link susceptible to stored XSS

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a topic "featured link" was not sufficiently normalized and escaped before being rendered in the topic list, allowing a user who can set a featured link to inject JavaScript when default Content Security Policy protections were modified or disabled. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-53962
5.4 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): Required (R)
  • Scope (S): Changed (C)
  • Confidentiality (C): Low (L)
  • Integrity (I): Low (L)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Insufficient SVG sanitization logic

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, insufficient SVG sanitization in upload and user avatar handling could lead to cross-site scripting when a user visited specific URLs that are not normally part of community browsing. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-49256
6.3 MEDIUM
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Attack Requirement (AT): Present (P)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Vulnerable System Impact Confidentiality (VC): Low (L)
  • Vulnerable System Impact Integrity (VI): None (N)
  • Vulnerable System Impact Availability (VA): None (N)
  • Subsequent System Impact Confidentiality (SC): None (N)
  • Subsequent System Impact Integrity (SI): None (N)
  • Subsequent System Impact Availability (SA): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Attack Requirement (MAT): Present (P)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Vulnerable System Impact Confidentiality (MVC): Low (L)
  • Modified Vulnerable System Impact Integrity (MVI): None (N)
  • Modified Vulnerable System Impact Availability (MVA): None (N)
  • Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
  • Modified Subsequent System Impact Integrity (MSI): Negligible (N)
  • Modified Subsequent System Impact Availability (MSA): Negligible (N)
  • Safety (S): Not Defined (X)
  • Automatable (AU): Not Defined (X)
  • Recovery (R): Not Defined (X)
  • Value Density (V): Not Defined (X)
  • Vulnerability Response Effort (RE): Not Defined (X)
  • Provider Urgency (U): Not Defined (X)
  • Confidentiality Req. (CR): Not Defined (X)
  • Integrity Req. (IR): Not Defined (X)
  • Availability Req. (AR): Not Defined (X)
  • Exploit Maturity (E): Not Defined (X)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Hidden tag names leaked via category serializers

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, restricted tag and tag-group names attached to publicly readable categories as allowed_tags, allowed_tag_groups, or required tag groups could leak to anonymous and unauthorized users through category and group endpoints. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-46413
6.5 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): High (H)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): None (N)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Regular users can route multipart uploads into the admin backup store

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, regular users could route direct S3 multipart uploads through ExternalUploadManager into the admin backup store. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-45788
6.3 MEDIUM
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Attack Requirement (AT): Present (P)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Vulnerable System Impact Confidentiality (VC): Low (L)
  • Vulnerable System Impact Integrity (VI): None (N)
  • Vulnerable System Impact Availability (VA): None (N)
  • Subsequent System Impact Confidentiality (SC): None (N)
  • Subsequent System Impact Integrity (SI): None (N)
  • Subsequent System Impact Availability (SA): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Attack Requirement (MAT): Present (P)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Vulnerable System Impact Confidentiality (MVC): Low (L)
  • Modified Vulnerable System Impact Integrity (MVI): None (N)
  • Modified Vulnerable System Impact Availability (MVA): None (N)
  • Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
  • Modified Subsequent System Impact Integrity (MSI): Negligible (N)
  • Modified Subsequent System Impact Availability (MSA): Negligible (N)
  • Safety (S): Not Defined (X)
  • Automatable (AU): Not Defined (X)
  • Recovery (R): Not Defined (X)
  • Value Density (V): Not Defined (X)
  • Vulnerability Response Effort (RE): Not Defined (X)
  • Provider Urgency (U): Not Defined (X)
  • Confidentiality Req. (CR): Not Defined (X)
  • Integrity Req. (IR): Not Defined (X)
  • Availability Req. (AR): Not Defined (X)
  • Exploit Maturity (E): Not Defined (X)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Secure uploads exposed by hotlinked image copying

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, secure uploads could be exposed by pull_hotlinked_images when an attacker knew the secured upload URL and the secure_uploads site setting was enabled. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-55420
7.5 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Remote code execution via pdf uploads

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, under certain non-default configurations, processing of PDF uploads could be exploited to obtain RCE on the server. This issue is patched in 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-45780
5.3 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): Low (L)
  • Integrity (I): None (N)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Private event sample invitees are serialized to non-invited event viewers

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, EventSerializer could expose invited group names, sample invitees, and attendance statistics to users who could view the topic but were not entitled to view the private event invitee list. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-53961
6.5 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): Low (L)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Forged AWS SNS bounce notifications can disable a targeted user's email (missing TopicArn binding)

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the AWS SES bounce webhook at POST /webhooks/aws verified that SNS messages were signed by Amazon but did not bind them to trusted TopicArn values, allowing any AWS account holder to publish validly signed forged Bounce notifications that revoke a targeted user email. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-59828
5.3 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): Low (L)
  • Integrity (I): None (N)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Hidden post revisions leak through adjacent visible diffs

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, post revisions that should be hidden from regular users could be leaked through visible diffs on adjacent revisions serialized by PostRevisionSerializer. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers

Permalink CVE-2026-53963
7.3 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): Required (R)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): None (N)
updated 4 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    4 packages
    • discourse-mail-receiver
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 hours ago
  • @LeSuisse accepted 4 hours ago
  • @LeSuisse published on GitHub 4 hours ago
Discourse: Stored-XSS in 2FA delete confirmation modal

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a malicious second factor name on an attacker-controlled account was not escaped in the delete confirmation dialog, allowing stored cross-site scripting when an administrator impersonated that account. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Affected products

discourse
  • ==>= 2026.1.0-latest, < 2026.1.5
  • ==>= 2026.4.0-latest, < 2026.4.2
  • ==>= 2026.5.0-latest, < 2026.5.1

Matching in nixpkgs

Ignored packages (4)

Package maintainers